Pests and diseases

There are many native and invasive forest pests and diseases that can either directly cause mortality, or weaken a tree so it is susceptible to other physical or biological stress. These pests and diseases often attack trees already weakened by drought or storm damage. There are many online resources to help you identify forests pests and diseases, in addition to the map shown here. Forest Pests of North America is one great place to start. Learn how to detect pests and diseases, what to do when you find them, and how to prevent their spread through the forests of the Northeast.

For information about some of the most common pests and diseases, click on a name:

• Hemlock Woolly Adelgid
• Emerald Ash Borer
• Asian Longhorned Beetle
• Beech Bark Disease
• Gypsy Moth

References

Adapted from

Staudinger, M.D., A.V. Karmalkar, K. Terwilliger, K. Burgio, A. Lubeck, H. Higgins, T. Rice, T.L. Morelli, A. D'Amato. 2024. A regional synthesis of climate data to inform the 2025 State Wildlife Action Plans in the Northeast U.S. DOI Northeast Climate Adaptation Science Center Cooperator Report. 406 p. https://doi.org/10.21429/t352-9q86

The Final Report, Appendix, and Webinar can be found here